diff options
Diffstat (limited to 'mm/memblock.c')
| -rw-r--r-- | mm/memblock.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/mm/memblock.c b/mm/memblock.c index 1c2ef2c7edab..64ed2439cf75 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -291,6 +291,22 @@ phys_addr_t __init_memblock get_allocated_memblock_reserved_regions_info( memblock.reserved.max); } +#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK + +phys_addr_t __init_memblock get_allocated_memblock_memory_regions_info( + phys_addr_t *addr) +{ + if (memblock.memory.regions == memblock_memory_init_regions) + return 0; + + *addr = __pa(memblock.memory.regions); + + return PAGE_ALIGN(sizeof(struct memblock_region) * + memblock.memory.max); +} + +#endif + /** * memblock_double_array - double the size of the memblock regions array * @type: memblock type of the regions array being doubled |